A Linear Fractional Semidefinite Relaxed ML Approach to Blind Detection of 16-QAM Orthogonal Space-Time Block Codes. - Chien-Wei Hsin; Tsung-Hui Chang; Wing-Kin Ma; Chong-Yung Chi (ICC, 2008)

A linear fractional semidefinite relaxation approach to maximum-likelihood detection of higher-order QAM OSTBC in unknown channels. - Tsung-Hui Chang; Chien-Wei Hsin; Wing-Kin Ma; Chong-Yung Chi (IEEE Trans. Signal Process., 2010)